Radiator for autocars.



PATENTED DEC. 27, 1904.

A. LOYAL. RADIATOR PORAUTOGARS.

APPLIUATION FILED JUNE 16, 1902.

- ZSHEETS SHEET 1.

PATENTED DEC. 27, 1904.

;A. LOYAL. RADIATOR FOR AUT0CARS.

APPLICATION FILED J'UIIE 16, 1902.

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, 'izwaast' Patented December 27, 1904;

PATENT OFFICE.

ANTOINE LOYAL, or PARIS, FRANCE.

RADIATOR FOR AUTOCARS.

SPECIFICATION forming part of Letters Patent N 0. 778,320, dated December 27, 1904.

' Application filed J'une'l6,19Q2. Serial No. 112,003.

To all whom it may concern.-

. Be it known that I, ANTOINE LOYAL, a citizen of the French Republic,anda resident ofParis, France, have invented certain new and useful Improvements in Radiators Specially Applicable to Autocars, of which the following is a specification.

In order to insure the proper working of the motors in autovehicles, it is necessary for the circulating waterto be readily cooled, so

7 as to require only the smallest volume .of water to be carried on the vehicle and without having to renew such volume of Water at frequent intervals, while, moreover, the cooling apparatus should be as light as possible. These requirements do not obtain with radiators as hitherto constructed, not even with those formed with corrugated disks of my own manufacture. Neither are any really good results effected by the use of radiators formed of flattened tubes, which, though providing a large radiating-surface in a very small section for, the circulating water, do not permit of an eflective circulation by reason of the narrow flat conduit, so that the result is far from what it should be.

According to this invention I overcome the various objections inherent in radiators of existing systems by combining a number of tubes of small section, so as to reduce the quantity of liquid subjected to external radiation. These tubes are preferably arranged close together and parallel to each other-in rows or series and with a number ofplates interposed to serve the twofold purpose of forming tie-pieces for the tubes and radiating Wings or surfaces therefor, the said plates being perforated for the insertion of the tubes and form a solid structure therewith.

My improved radiator will be readily understood from the following specification, with reference to the accompanying drawings, in which p H V Figure 1 is a front elevation showing only a single set of pipes'of the radiator; Fig. 2, a vertical section on the line A B of Fig. 1. Figs. 3 and 4: are respectively a detail in section of two of the courses or tiers of pipes and a plan of one of the collectors for the ingress and egress of the water. My improved radiator is composed of a series of small circular tubes a, disposed parallel to each other and connected together by means of tie-plates b, of thin metal, preferably corrugated, so as to insure greater rigidity and a more extensive cooling-surface to the atmospheric air. The plates Z) are perforated, so as to fit the tubes to, and are soldered onto the latter, so as to form a solid structure and to insure the proper transmission of the heat.

In order to present a very large surface to the air during the travel of theyehicle, the various courses of the radiator, each of which comprises a series of small parallel tubes arranged in different horizontal planes, are made tapering, as shown in the drawings. The extremities, both at the ingress of the hot Water and at the egress of the cooled water, lead into a collecting-pipe 0, provided with a tubulure or neck d, which communicates with the water circulation around the motor. In this matter the hot water which enters the collector becomes divided into as many films or jets as'there are tubes and which circulate separately over the entire course, and there-' by part with their heat onto, the extensive surface of the tubes, which latter transmit the heat tothe plates. I have already stated that. the perfect contact between the tubes and the tie-plates may be established by soldering, and this may be effected by means of plain tin Furthermore, the tie-plates may be formed with slightly-raised rims around the perforations to receive and hold the tubes, or the joints between the plates and the tubes may be brazed or galvanized. It will be readily seen that these tubes, which are preferably round, permit of the free circulation of the water for cooling, notwithstanding their small section, and thus the efficiency of the apparatus as a radiator is excellent;

With this apparatus applied to an autovehicle the cooling proceeds high speeds of the vehicle.

Having now described my invention, What more rapidly at I claim as new, and desire to secure by Letters they are rigidly connected, and collectors of Patent, islarge capacity connected to the ends of the A radiator forrnotor-vehicles, comprising tubes. a vertically-disposed series of small continu- In testimony whereof I have hereunto set 5 ons parallel tubes 1bent back 1and forth into a my hand in presence of two witnesses. pluralityofparalle horizonta courses,the sevv 1 T 1 7 eral tubes of each course being each in a difier- A} [Olbh L01 ent horizontal plane, a series of parallel radi- Witnesses: ating tie-plates through each of which all the ADOLPHE STURM,

IO tubes of each course extend and to which EDWARD P. MAGLEAN. 

